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#qemu

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#QEMU 10.0 is out:

qemu.org/2025/04/23/qemu-10-0-

mail-archive.com/qemu-devel@no

Highlights include:

* block: virtio-scsi multiqueue support for using different I/O threads to process requests for each queue

* VFIO: improved support for IGD passthrough on all Intel Gen 11/12 devices

* Documentation: significant improvement/overhaul of documentation for QEMU Machine Protocol to make it clearer and more organized

* x86: faster emulation of string instructions

For details, see: wiki.qemu.org/ChangeLog/10.0

Holy crap y'all, Quickemu is amazing! I got Windows 10, (English United States cause English International only allowed me to choose English UK for some reason), installed it with Narrator, downloaded and installed NVDA, and it barely feels like I'm running a VM at all. I kinda wonder if it'd work well at all on the BTSpeak. I could imagine it passing through Braille access on a future BTBraille.

Anyway, two commands I've figured out so far, Control + Alt + G gives control back to Linux, and Control + Alt + F puts the VM in fullscreen.

github.com/quickemu-project/qu

GitHubGitHub - quickemu-project/quickemu: Quickly create and run optimised Windows, macOS and Linux virtual machinesQuickly create and run optimised Windows, macOS and Linux virtual machines - quickemu-project/quickemu

In the wee small hours i decided to give #GnomeBoxes another chance as a possible alternative. Chose to install via #flatpak, coz my Host is :archlinux: :kde: :plasma: #ArchLinux #KDEPlasma & i did not wish to risk possible gnome vs plasma file conflicts.

It did a fine job of installing an #ArchLinux VM [which i completed using the latest #ArchInstall v3.0.3], so then in an act of gross stupidity i ridiculously chose to see if it could handle a win10 VM via a 3-yr old ISO i have lying around. As i abandoned windoze "for real" in 2014, i had forgotten the many hours of time-wasting bullshit involved, at the end of which instead of getting something decent, you just get... windoze, ugh.

Anyway, so far it seems that GnomeBoxes is going ok, which makes a nice change as all prior tests of older versions failed to work properly. Doubt though atm that it'll persuade me to give up on #qemu / #kvm / #libvirt / #VirtManager. GB has no facility to Suspend VMs, so they need to be fully shutdown, which is a drag. Also, the FP version does not support USB transfer, which is a bugger, & so far i've not made #SharedFolders work [but think i know why].

Switched from #lookingglass 2:B6-10 to 2:B7-1 and it was nice that you didn't have to click on the window to get control of the host mouse, you got full control of the mouse pointer as soon as you mouse went over to the looking-glass window.

Just wish the RTX2060 would be more stable in the guest OS, sometimes it just crash while using heavy graphics programs like PhotoShop (yeah, I do know #Gimp but not all people want to use it and those this VM).

Schwarm zuhülf!

Mein debian (12) will keine VMs starten.
Habe mir (mit Cockpit) einen Storagepool im Standardpfad (/var/lib/libvirt/images) eingerichtet & da ein qcow2 abgelegt. Versuche ich jetzt eine VM mit dem Image zu starten, verweigert AppArmor den Zugriff auf das Image.
Jemensch hier eine Idee für einen (möglichst frickelarmen/korrekten) Lösungsansatz?
Da unten gibt’s nochn paar Details.👇
#linux #kvm #debian #libvirt #qemu

How Do I Properly Install KVM on Linux

sysguides.com/install-kvm-on-l

The Kernel-based Virtual Machine (KVM) is a Linux hypervisor that supports full virtualization. When you install KVM on Linux, your Linux distribution is transformed into a Type-1 hypervisor, allowing you to run virtual machines at near-host machine speeds.

A Type-1 hypervisor, also known as a bare-metal hypervisor, interacts with the underlying machine hardware directly rather than through an operating system.

In this article, I'll show you how to properly install KVM on Linux distributions such as Fedora, Rocky, Ubuntu, Debian, and Arch Linux.

Table of Contents

  1. Overview of Key KVM Components 1.1. KVM Kernel Modules 1.2. QEMU 1.3. Libvirt
  2. Check Virtualization Support
  3. Install KVM on Linux Distributions
  4. Install VirtIO Drivers for Windows Guests
  5. Enable the Modular libvirt Daemon
  6. Validate Host Virtualization Setup
  7. Optimize the Host with TuneD
  8. Configure a Network Bridge
  9. Give the User System-Wide Permission
  10. Set ACL on the Images Directory
  11. Conclusion
  12. Watch on YouTube
SysGuides · How Do I Properly Install KVM on Linux (2024)KVM transforms Linux into a Type-1 hypervisor allowing you to run guest OS at speeds close to the host machine. Find out how to install KVM on Linux properly.
#KVM#Linux#QEMU

Here comes our semi-regular attempt to deprecate 32 bit hosts in #qemu. I would like to know if there are truly people that still run #tcg emulation on #32bit hosts and need that facility maintained in future versions of QEMU: lore.kernel.org/qemu-devel/202

The poll:

lore.kernel.org[PATCH 0/1] meson: Deprecate 32-bit host systems - Richard Henderson
Weird question about Microsoft Excel

So I have been wanting to learn more about how to use Microsoft Excel so I can teach other people about some of the more advanced programming techniques (EDIT: 1-on-1 lessons on their own computer with their own licensed copies of Excel). I want to teach myself more about Excel so I was going to install it on my own computer and do some advanced tutorials. But then I really do not want to burn up all of that disk space just to run Wine and Excel.

So I got to thinking:

  1. is there an older version of Microsoft Excel I could use instead?
  2. The “ribbon” UI/UX asside, how far back in time (in Excel software versions) would I have to go before the formula language and cell computation engine became too different from the most recent Excel that it would not be very useful for me as a learning/teaching tool?
  3. Would it take less disk space to run this in a minimal Windows NT 2000 or Windows XP instance on QEMU than it would take on Wine?
Continued thread

But depending on my `fdconfig.sys` I either get it in a boot-loop (IDK if from b.com or 9dos) or a kernel-panic from 9dos ("double fault"... at least it's getting out of b.com!).

Anyone have troubleshooting resources for adjusting #FreeDOS `fdconfig.sys` or #Qemu flags (or other emulators) for circa-1992 software?

I'm too young to remember config.sys, and my #RetroComputing hasn't involved much #DOS yet.